Picture-slide-display apparatus.



J. D. SCOTT E..C. VAN ALTENA.

PlCTURE SLIDE DISPLAY APPARATUS; APPLICATION F-I LED APR. M. an. RENEWED MAR. 12.1w

Patented Oct. 22, 1918..

2SHEETS-SHEETI 4 E59 fnUen/Zbrs.

1707277, D.x5fcott7 Z'Zw C. IlznAZte J. D. SCOTT E. C. VAN ALTENA. PiCTURE SLIDE DISPLAY APPARATUS. APPLICATION FILED APR."1,|9|7- RENEWED MAR. 2.1918 1,282,298. Patented Oct. 22, 1918.

2 SHEETSSHEET 2.

liven/ions: .foiin D. Scott;

law dCII/ZzizAZ a,

UNITED STATES PATENT oFFIoE.

JOHIlN' D. SCO'1 T AND EDWARD C. VAN ALTENA, OF NEW YORK, N; Y., ASSIGIlQ'ORS TO ATTRACTOSCOPE CORPORATION, OF NEV] YORK, N. Y.

Application filed April 1%. 1917'. Serial No. 162,15.

To all i i/10m it may concern Be it known that we, John D. Sewer and llnwxno t. YAxAL'riaxA. citizens of the lfnited States. residing at New lfork N. Y., respectively. have invented certain new and useful improvements in licturc-Slide-Display Apparatus, of which the following is a specification. I

()ur invention relates to apparatus for moving picture slides to a display point from a magazine containingtwo or more of the slides and returning them to the'display point after a prescribed display period has elapsed. the apparatus operating automatically when suitable power is applied thereto, to move the slides .wcl'iaiil/i to the display point. and return them to the magazine or holder.

The invention consists in the features and combination and arrangement. of parts hereinafter described and paitieularly pointed out in the clain'is. v

In the accompanying dra\\'ings Figure l isa vertical sectional view of .the apparatus with parts in elevation.

Fig. 2 is a sectional plan view.

Fig. 1:3 is a view of one of the picture slides.

Flex-l is a detail view of the supporting shelf for the slides, indicating the n'iai'iner in which this shelf operates in connection with the slides.

The apparatus comprises a framework made u of sides 1. 2. each of said sides having a channel or way in the form of a slot 3 for directing the slides in their course of travel. The slides are of the form shown in Fig. Z-land comprise projections or supports "at at the upper parts or edges of the slides by which they are hung in the apparatus and with which contact is made by the operating or transporting mechanism to move the slides from place to place, the said supports or projections extending out through the slots 3 while the body of the slide lies and moves between the sides of the frame land 2. It will be observed that the slot .or way 3 extends substantially 'er'tically from the point: :0 to the point 3 and deflects at an angle to the point z where this slot 01 way merges into the end of another slot or way 3, which is formed in each of the sides and this slot or way3 extends downwardly at an inclination to the point u where it merges by a curved portion llltQ the return slot or way 5 which extends at a downward inclination hack to the point as where 'it connects Specification of Letter- Patent.

Patented Oct. 22, 1918.

Renewed March 12, rats. Serial No. 2223 with the vertical part of the slot 01' Way 3. The slides. as above stated, are ln'i'ng between the -sides of the frame by their progctions extending out through the slots 0): ways and we have shown. in Fig. 1, only three of such slides, these resting upon the wall of the slot 3%. The slide at. the left rests in line with the vertical ways 01 slots 3 and in position so that the projections 4 thereof may be engaged by lifting means consisting, in the present example of my inven ion. of lugs 5 mounted on endless carriers in the form of chains (5 which pass around lower sprocket wheels 7 on a shaft 8 mounted in the sides of the frame. the chains then passii vertically parallel with the vertical. port. at the slots or ways 3 and close thereto, so that the lugs will engage the projections 4 0f the left hand slide shown in Fig. 1, and elevate it from its stored position. or out-of-use position, so as to carry it to the display point. The vertical stretch of the chain passes over sprocket wheel 9 and thence at an inclination the chain passes to and over the sprocket wheel 10, these sprocket wheels 9 and 10 be ing' jmirnaled on stub axles or pins on the outer side of the frames 1 and 2. The chain after passing the upper sprocket 10 extends downwardly at an inclination to pass under the lower sprocket 7. Power may be comniunicated to the apparatus by a motor connected up with the shaft or a spring power device or a hand power device may be eniploved.

Just beyond the turn at the point 1 a shelf 11 is located extending across th in clined portion of the guiding' slots or ways, this shelf being movably mounted to clear the slots or ways for the onward passage of the slides when lifted by the chains. \Vhile this shelf may bevariously arranged, it is preferably located so as to extend at substantiall y right angles across the guide ways or slots and preferably it'is pivotally niounted at 12 and at one end it is provided with an extension or arm 13 which is pressed by a spring 14 so that the shelf will normally rest in its right angular relation to the slot or guide way and across the same. The shelf is arrested in this position by the arm 13 coming against: a stop 15. At. the upper ends of the inclined portions of the guide ways or slots where they merge into the end of the guide ways or slots 3. suitable switch ineans are'provided so that when a the said switch means and will be deflected thereby into engagement with the guide Way 3 during the descent or provided in a simple manner by leaf springs 16 extending from the lower Wall of the slots 3 across thc inclined'portions 3.

On the inner side of the frames or side walls 1 and 2, tracks or' iide rails 17 are mounted to control the ower edges or portions of the picture slides in their descent back to the magazine or point of rest.

The sides of the frame may be tied together by any suitable means, as tie 'rods 18. It willnow be observed that the lugs 5 of the chains, by engaging the projections t of the slides, will elevate the same and carry the upper edges of the slides into contact with the shelf 11 extending across the guide ways and will tilt this shelf so that/the slide can proceed to its limit of movement, indicated in. Fig. l'approximately at A, and as soon the lower edge of the slide gets above the shelf and the lug of the chain frees the slide by passing away therefrom, the said slide will drop back upon the shelf, which has in the meantime assumed its holding position extending across the guide ways. In other words, the picture slide is moved by the chains to a point where its lower edge is at a. little distance above the normal oft-he shelf 11, so that this shelf will return to its normal position under the action of the spring 14 and thereupon the chains passing over the upper sprockets 10 will.

cause a. movement of the lugs 5 away from the projections 4 of the picture slide and this will be released to fall upon the shelf. In this elevating movement theslide will be carried to a point at which the projections .4: will pass above the spring switches 16 and these spring switches, having been pressed aside by the projections,will be returned to normal position to close the slots 3 against downward movement of the said projections along the same and these projections will now'be so located that when the slide is set free to fall by gravity its projections will necessarily be caused to a move along the slots or ways 3 because of the position assumed by the spring switches. lVhen the slide is at the position resting on. the shelf 11, it is at the display point, the lenses being indicated generally at B and the light at C. The image is projected onto a mirror D by the objective E and this mirror reflects the lYl'htJO upon a suitable screen, indicated at F. The slide. rests at the display point While the chains in their-movement bring the lugs thereon to engage the projections 4 of the next slide in the magazine or holder and until this second slide is lifted into engagement with the underside of the shelf, causing this shelf to tilt, as above described, but having the effect of return movement of the slides. This switch means may beposition 'fluenced by any apparatus,

get-her to move to said mirror at an deflecting or discharging the lower edge of the slide which has been resting at the dis play point from-oft the shelf, so that it will new fall by gravity away from the display point. This action is illustrated in Fig. 4-. In falling away from the display point the movement of the used slide is controlled by the guides or slots 3 with which the projections 4 of the slide ei'igage and also by. the tracks or guide bars 17, upon which the lower edges of the slides rest. The used slide is thus deflected so as not to interfere in anymanner with the slide which is in course of upward movement. 'l bc used slide, after it passes awaypt'rom control of the guide bars or t'acksjl T, is controlled in its final movement by the slots or ways 3, being supported therein by the projections 4 extending through these slots. The used slide is thus directed back to the storage point to lie against the slide already stored, or if only two slides are being en'iploycd the used slide will assume a position against the left hand wall of the slot 3 and in line with said vertical slots or ways ready to be engaged'by t'cprojections 5 of the chains when they come around.

The present apparatpp does not for its operation uponfany of slides being used. Each slide will store itself in proper position without being in guiding function exerted by any other slide and the apparatus will work continuously with two slides as well as with a greater number.

In order to rei'nove any slide or to fill the we employ movable sections 1 of the framework, said sections being pivoted at 20 and each. section forming one wall of the uide way adjacent which it is located. he movable sections at the opposite sides of the framework are connected toin unison by a cross tic 18 and any suitable latch arrangement may be provided to hold this movable portion of the guide way in place. By throwing the movable sections into position, shown in dotted line in Fig. 1, any slide may be removed or replaced. The parts of the t'rai'ne work may bestrengthencd by bridge pieces, indicated generally at 21, which tie together the portions of the framework on the opposite sides of the slots or ways and these bridge pieces may be cast with the fran'les.

The apparatus may comprise a box or container G, within which the parts above described are located, and it will be seen that the receiving screen or ground glass F is located on one side oi this box while the mirror I) is located on the opposite side of the box, the slide operating mechanism being located at about the vertical center of the box or container. By using an inclined mirror I) and by projecting the picture up angle, or, in other depend words, by angulady positioning the picture slide 'at the display point, the rays will be projected first to the right, that is upon the mirror, and will then be reflected toward the left upon the screen, By this arrangement :1 large screen may be employed with a he or container of mininmm dimensions an'l by projecting the rays first. in one direction and then in the other above the elevaiing apparatus, great saving in space is attained and only one n'iirror need be employed by inclining this as shown. The inclination of this minor is such that the reflected rays pass close above the apparatus and thus space is saved.

Ledges 01' tracks extend inwardly from the side frames 1 and i2 and at a point above the supporting shelf 11. and these are inclined to correspond with the incline of the slot 3 and in fact they extend along the lower border of this slot from in line with the point where the chains turnaround the sprockets 5). 'liiese ledges receive the slides they are carried past the sprockets i) and thus position them in inclined relation at lhe display point.

The elevating chains are backed by ledges or flanges 23, to hold the chain to its work. y

d'hile weliav shown and described lhe projections lon the picture slides as per- :t nming the two fold function oi hanging the slides in the. guide ways and also servas the means for engagement by the ugs on the elevating chains, it will be uni'jlersijood that we do not limit ourselves in his respect, as'ihc projections may perform.

the first function of guiding and hanging toe slides in the guide ways and the elevatin}; meaps may engage a portion oi the slides otner man the prouctions. v

We ""am: 1. A display apparatus for picture slides for mounting the rest to permit movemem of the samefrom across the guide ways, said rest being moved during the oncoming travel of the new slide todischarge the used slide and permitthe passage of the new slide above it: to rest thereon alone, downwardly inclined iracks to receive the used slides whm disclmrged by the movement of the rest, and to direct them back to the magazine and means for elevating the slides, substantially as described.

2. A display apparatus for picture slides comprising a magazine for the slides, guide ways extending; therefrom to a display point for the slides, a rest for the slides normally lying" across said guide ways and holding the slides singly at the display point, means sing a magazine for the slides, guide them back to the magazine and means for elevating the slides, substantially as described.

3. A display apparatus for picture slides comprising a magazine. guide ways extending upwardly therefiinn, a rest normally lying across said guide ways and holding the slides singly at the display point, meansfor mounting the rest to permit movement of the same from across the said guide ways, to

discharge the used slide and permit the passage of the new slide 'to a point above it to ccupy the place of the discharged slide, means for elevating the slide and automatically disconnecting therefrom when it. reaches a point with its lower edge above "the rest to position itself by gravity on said rest, said rest when operated moving the lower edge of the used slide laterally, and a guide way for innnediatcly"receiving the used slide when so moved to fall away by gravity leaving the new slide alone at the display point and on said rest, substantially a described.

4. In con'ibination in a display apparatus for picture slides. a magazine for slides, guide w ays extending upwardly therefrom, a rest normally lying across said guide ways, to support the slides singly at the display point. a pivotal mounting for the said rest to permit it to move from across the said guide ways, said rest being struck by the upper part of the new slide to be moved aside io discharge the usedslide and allow the new slide to pass entirely above it, to rest thereon, by gravity, elevating means for the slides automatically disconnectingtherefrom when they are raised to a point with their lower e ges above the rest, and guide means for immediately receivingtheused slide when the rest is tilted to direct the'said used slide back to the magazine, substantially as described. 1

5. In combination a plurality of picture slides, a frame having guide ways in which the slides are hung from their upper ends, elevating means for the slidesto carry them to the display point, and a shelf movably mountcd'alul permitting the slides to pass above the same and rest thereon, the used slide lMlILQ discharged by the movement of the shell during the oncoming movement of the new slide, said shelf holding said slides singly at the display point, substantially as described.

6. In combination a plurality of picture slides, a frame having guideways engaged by the upper portions of the slides, the portion of said guide ways at the display point extending at an inclination to hold theslide in inclined position, a-shelt movably mounted at the lower part of said inclined guide ways and extending across the same to support the slides singly at the display point, said shelf being moved during the oncoming movement of the slide being elevated and by its movement discharging the used slide from the display point, substantially as described.

7. In combination a plurality of picture slides, a frame having guide ways at an inclination at the display point, and guide ways at a different inclination for the return of the used slides to their point'of storage, said inclined guide ways merging into each, other at their upper ends, said slides having projections at their upper ends entering said guide ways, by which the slides are hung in the guide ways and will be separately ,controlled in their movements, elevating nieans for the slides, and a shelf for supporting the slides at the display point, said shelf being movably mounted to retract from across the guide way and operated during the oncoming movement of a new slide, to move and discharge the used slide, substantially as described.

8. In combinrtion a plurality of picture slides, a frame having guide ways at an inclination at the display point, and guide ways at a different inclination for the return of the used slides to their point of storage, said inclined guide ways merging into each other at their upper ends, said slides having projections at their upper ends entering said guide ways, by which the slides are 11 ung in the guide ways and will be separately controlled in their movements, elevating means for the slides; and a shelf for supporting the slides at the display point, said shelf being mov ably mounted to move from across the guidewayand operated during the oncoming movement of a new slide, to move and discharge the used slide, said elevatin means engaging the projections'on the slides, substantially as described.

9. In combination in a display apparatus, ill plurality of picture slides, a frame having vertical guide ways with inclined extensions thereof at their upper ends, inclined guide ways merging with those first mentioned for the return of the slides from'the. display point at which the first mentioned incllned guides are located.- the said slldeshavlng projections at their upper ends entering said guides to control the movement of the slides and to hang the slides separately in said guide ways and elevating meansto engage the slides, said elevating means conforming in its path to the vertical guide ways and the inclined extensions thereof at the display point and a shelf at the lower end of the inclined guides first mentioned to hold the slides at the display point,vsaid shelf being movably mounted to discharge the used slides and being op erated during the oncoming movement of the new slide, substantially as described.

10. In combination in a'picture display apparatus, a frame having vertical guide ways with inclined extensions thereof at the display point and ledges bordering the said inclined guide ways to afford a rest for the picture slides when at the display point, said frame having inclined uides extending from the upper ends of t ose first men-m... tioned for the return of the slides, -said pic-8 0; ture slides having projections at their uppcri portions entering the guide ways and" the return inclined guides merging into reversed inclined guides at their lower ends which reversed inclined guides extend to the lower ends of the vertical guides and a shelf at the lower portion ofthe inclined guides first mentioned for supportin r the slides at the display point, said she f' being movably mounted and operating to discharge the used slide and permit the passage of the new slide to a point above it, substantially as described. V I

11. In combination in a picture display apparatus, a plurali of picture slides having projections at tieir upper portions, a frame hauing inclined gui es for holding the slides 'at the display point in inclined position, inclined guides merging into those first mentioned for returnin the slides to 100 their point of storage, a shel f for supporting the slidesat the displav point, said shelf being movably mounted to discharge the used slides and permit the passage of the oncoming new slide and struck for rece1ving the lower portion of the discharged slides while their upper portions are controlled by the projections thereon moving in the return inclined guides, substantially as described. 1

12. In combination a plurality of picture slides having projections at their upper portions, a frame having vertically extend-- ing guides receiving said projections, said guides merging into inclined guide portions 11L at the display point, return inclined guides, a shelf extendm across the guides at the lower portion of the inclined guides, said shelf holding the slides at the display point,

an elevating chain having a vertical stretch with an incline stretch starting from a point adjacent the shelf and extending to the upa per part of the inclined guide and thenceto the lower portion of the vertical guide, substantially as described. 1'25 13. In combination in a )icture display apparatus, a plurality of sli es having projections at their upper ends, a frame hill."- ing uide ways receiving said projections and .or holding the slides in inc ined posi:

I of the slide when at said display point,-

tion at the display point, return incli ne guides for directing the slides to their point of storage by gravity, said return guides merging into the. upper ends of the incline guides at the display point and switch means located at the junction of the two sets of inclined guides to control the movement of the projections from one to the other, subtantially as described.

14. In combination in a picture display apparatus, a plurality of slides, means-for holding said slides in inclined position at the display point, a mirror arranged at a point elevated in respect to the slide rest and inclined in respect to the axis said mirror being located off to one side of the vertical plane in WlllClhStllCl rest is located and a screen arranged at an.

elevated point in respect to the slide at the display point, so that the reflected rays may pass to said screen above the slide, substantially as described.

15. In combination in a picture display apparatus, a rest for. the picture slides arranged in inclined position at the display point, a mirror arranged above and to one side of the said rest and at an inclination to to direct the slides to the display point,

the axis of projection of the picture and a screen arranged at an elevated point in respect to and upon the other side of the said rest from that upon which the mirror is 10- cate'd, substantially as described.

16. In combination in a picture slide display apparatus, a frame having guide ways slides having projections at their upper ends moving in said guide ways by which the upper ends of the slides are controlled, guide ways for returning the slides to the point of storage, saidprojections moving in said guide ways during the return move ment of the slides, means for guiding the 'ways for returning the slides to the point of storage, said projections moving in said guide Ways during the return movement of the slides, means for guiding the lower portionsof the slides in their returnin movement and a shelf for holding the sides at the display point, said shelf being movable to discharge the used slide and ermit the new slide to pass above it, and switch means for directing the slides from one set of guides to the other, substantially as described. I

In testimony whereof, We ariixour signatures.

JOHN D. sco-r r. v EDWARD 0. van amena- 

